I think they are the ones that are automatically generated. No member posts them. The one I saw tonight was for a local race, so I know they have to be using my information to know what ads to place.
I agree with the phone ones! Annoying. My husband had to fax some papers and was interrupted three times because of those political calls.
On a slightly different note... I am getting to where I don't want to create new threads anymore because I don't have time to read all the threads and in all honesty, don't mean to post something someone else has posted already. I apologize for having done so.